Drain-conduit or culvert.



E. CARROLL. DRAIN comm on OULVERT.

APPLICATION FILED JULY 25,.;191]

1,014,636. Patgnted Jan. 16,1912.

' I Attorneys.

Enwann csnnonn, or KIRKSVILLE, mrs'sonn'r.

DRAIN-CONDITIT 0B CULVER'I.

Specification of Letters Patent.

Patented Jan. 16, 1912.

Application filed July as, 1911. Serial No. 640,461.

T u all whom it may concern Be it known that I, Enwano Cannonn, a citizen of the United States, residing at Kirksville, in the county of Adair and State of Missouri, have invented a new and useful Drain-Conduit or Culvert, of which the following is a specification.

The present invention relates to improvements in drain conduits or culverts, and the primary object of the invention is the provision of a drain conduit or culvert made up of a series of sections of proper foraminous material the same being substantially U-. shaped in cross section so as to provide an open bottomed conduit, the lower edges of which are provided with flanges or bases to prevent the cutting of said edges into the earth, so that the said conduit will he iretained in its original placed position.

A further object of this invention is the provision of a sectional drain conduit, the members of which, except where a crossing or intersection is made, or where another conduit leads into the other are identical and are provided with strengthening and overlapping means upon their upper adjoining edges, whereby the sections may be connected in continuity to produce a rigid drain, especially desirable for road crossings, the same being constructed of clay, or cement and sand so as to be practically indestructible, and at the same time very economical.

With the foregoing and other objects in view which will appear as the description proceeds, the invent on ',resides in the combination and arrangement of parts and in the details of construction hereinafter de-' scribed and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of whatis claimed without departing from the spirit of the invention.

In the drawings ;-Figure l is aperspective view of three sections of the conduit in operable relation, two of the sections be: ing a straight line drain orconduit, while the third section is connected at right angles to one of said sections. Fig. 2 is a cross section taken on line 22 of Fig. 1. Fig. 3 is a side elevation of the main'oonduit having one section provided with means for connecting two oppositely'disposed and intersecting conduits. Fig. 4 is a cross sec hm taken on line 4-4 of Fig. 3.'

Referring to the drawings, the numerals l, 2 and 3 represent the various construc- HL l tions of tiles or sections necessary to construct, astraight form of drain conduit, a single intersecting conduit, and an oppositely disposed intersecting conduit. Each of, these sections are provided with the parallel and integral walls 4 having the 'top portion with the straight top 5 and the curved .do1ne6, producing a rectangular channel A within the walls and at the same time making the top of the tile in such shape as to permit the outside moisture to be drained therefrom and at the same time produce a strong arch to preventthe collapsing of the conduit. Each section is provided with the straight end portion 7 and at the other end integral with the top thereof is the overlapping cap 8 having the curved projecting portion 9 adapted to 'fit snugly over the curved end 7 of the adjacent tile and thereby seal the joint at such point and provide a reinforcement to overlap the adjacent tile.

Formed integral upon the lower edge of all of the sections are the plates or flanges 10 which project inwardly and outwardly so as to provide a longitudinal foot for each wall 4 of the tile, thereby providing a base to prevent the walls 4 from cutting into the earth and thereby rendering the ditch or drain of the conduit useless or nearly so. The tiles when constructed accordingly are used for straight line conduits, and when it is desired to cut in an intersecting drain,

the tile member such as 2 is provided with an aperture 11 in one Wall thereof, the same being surrounded by a flange or rim 12 adapted to fit within the channel or recess A at the end 7 of one of the tile sections such as 1. Should it be desired a section such as 3 having oppositely disposed openings 11 may be employed, the same being provided wit-h the usual thimble or flange 12 for the reception of the adjacent section of the intersecting conduit.

It is therefore evident that by constructinga drain conduit ofsectional members as herein set forth, that the sections may be "made of any size so as to produce a proper area in cross section drain or sewer, and by.

making the same in sections, which interlock as shown and described, it will be seen that the said sections br tiles may be properly placed in position by, an ordinary mechanic and that in case of breakage the same may be readily repaired, as the abutting ends of the sections are straight and thus permit the broken sections to be pulled up- -time it provides a single integral section each wall.v

' appreciable extent the other or adjacent secclean out the various sections by the same integral body portion having a curved dome providing an open bottomed conduit there- .through, an overlapping cap formed integral thickness of the Walls carried by theiree wardly and out, without disturbing to an tions of the conduit. It is also possible to operation, that is lifting the sections Where the debris has collected and removing said debris and replacing the section to complete the drain. The providing of a substantially U shaped channel or conduit renders this possible, which would not be -the case if the conduit was rectangular, elliptical or circular as is the usual custom. At the same carrying with itits footer or base flanges and its overlapping, interlocking and sealing member, such as 8.

' What is claimed is 1. In a tile member for a drain conduit, an

and parallellongitudinally disposed walls with one end and projecting therefrom to overlap the adjacent end of another section, and a strip ofa greater width than the longitudinal channel therethrough, one of said Walls being provided with a slot therein', a thimble upon three sides of said slot adapted to fit within the channel of an adj acent section, a strip of greater width than the thickness of each wall formed integral with the lower edge of each wall, and aconnecting plate projecting beyond the exterior of the top of'the tile and having its end projecting beyond the end of the tile to overlap and form a seal for the joint between the tile and an adjacent tile. r

3. A tile for a conduit drain having formed integral a curved exteriortop, two parallel walls depending therefrom and proend of the top thereof-and projecting be yond the end of the tile to-form a seal for each wall formed integral at the lower edge thereof to provide a footer or base for the tile.

end thereof to provide a base or footer for 2.- .An intersection conduitor drain tile,

my own, I have hereto afiived my signature in the presence of two Witnesses.

\Vitnesses made from an integral mass of material and having the top portion terminating in two parallel walls forming an open bottomed 4 EDWARD- CARROLL.

J. MCDOWELL, ANNA P. BAQUET.

viding with the top an open bottomed channel, a curved plate formed integral with one In testimony that I claim the foregoing as the joint with an adjacent section, and a flangeof greater width than the thickness of 

